| 摘要 |
PURPOSE:To allow an object preserved to be ready for use immediately after taken out of a preservation box without dew on it by controlling the inside temperature of preservation box lower than the outside temp. by use of electronic freezing element, and setting the inside humidity of the box at 20-50% RH by use of low-humidity unit. CONSTITUTION:The inside temp. of preservation box 1 is controlled so as to be lower than the outside temp. by 5-10 deg.C with electronic freezing element 4, and inside humidity of the box 1 is set at 20-50% RH with self-regenerative low humidity unit 7 using drier 6 such as silica gel. Thus, objects such as photographs, etc. can be constantly preserved for a long period, and used immediately after taken out of the box without dew on them because inside temp. does not fall below the dew point. |
